package com.jack.controller;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cloud.client.ServiceInstance;
import org.springframework.cloud.client.loadbalancer.LoadBalancerClient;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.client.RestTemplate;

import com.jack.entity.User;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixProperty;

@RestController
public class MovieController {
  private static final Logger LOGGER = LoggerFactory.getLogger(MovieController.class);
  @Autowired
  private RestTemplate restTemplate;
  @Autowired
  private LoadBalancerClient loadBalancerClient;

//  @HystrixCommand(fallbackMethod = "findByIdfallback")
//  @GetMapping("/user/{id}")
//  public User findById(@PathVariable Long id) {
//    return this.restTemplate.getForObject("http://microservice-provider-user/" + id, User.class);
//  }
  
  @HystrixCommand(fallbackMethod = "findByIdfallback", commandProperties = {
//		  @HystrixProperty(name="execution.islation.strategy", value="SEMAPHORE"),
		  @HystrixProperty(name="execution.isolation.thread.timeoutInMilliseconds", value="5000"),
		  @HystrixProperty(name="metrics.rollingStats.timeInMilliseconds", value="10000")
  }, threadPoolProperties = {
		  @HystrixProperty(name="coreSize", value = "1"),
		  @HystrixProperty(name="maxQueueSize", value = "10")
  })
  @GetMapping("/user/{id}")
  public User findById(@PathVariable Long id) {
    return this.restTemplate.getForObject("http://microservice-provider-user/" + id, User.class);
  }

  public User findByIdfallback(Long id){
	  User user = new User();
	  user.setId(-1L);
	  user.setName("defaut value");
	  return user;
  }
  
  @GetMapping("/log-user-instance")
  public ServiceInstance logUserInstance() {
    ServiceInstance serviceInstance = this.loadBalancerClient.choose("microservice-provider-user");
    // 打印当前选择的是哪个节点
    MovieController.LOGGER.info("{}:{}:{}", serviceInstance.getServiceId(), serviceInstance.getHost(), serviceInstance.getPort());
 
    return serviceInstance;
  }
}